General Radio Impedance Bridge Model Type 650-A

Manufacturer: General Radio

Model Number: Type 650-A

Serial #: 12145

Equipment Description: Impedance Bridge

Label Write-up:
An impedance bridge compares electrical impedances, which may contain inductance, capacitance, and resistance. It is similar in structure to a Wheatstone bridge which is used to compare resistances. It is used with the 650-P1 oscillator-amplifier. This was one of the best selling instruments made by General Radio.

Dates Produced: 1933

Original Price: $175

The museum's inventory number: MRT-1151

Located at Museum in: Test Equipment Room